chore(deps): update dependency @types/supertest to v7

Author: renovate[bot]

admin/backend/package-lock.json

@@ -65,7 +65,7 @@
     "@types/express": "^5.0.0",
     "@types/multer": "^2.0.0",
     "@types/node": "^24.0.0",
-    "@types/supertest": "^6.0.2",
+    "@types/supertest": "^7.0.0",
     "@vitest/coverage-v8": "^4.0.16",
     "dotenv": "^17.0.0",
     "eslint": "^9.18.0",

admin/backend/package.json

@@ -59,7 +59,7 @@
     "@swc/core": "^1.10.7",
     "@types/express": "^5.0.0",
     "@types/node": "^24.0.0",
-    "@types/supertest": "^6.0.2",
+    "@types/supertest": "^7.0.0",
     "@vitest/coverage-v8": "^4.0.16",
     "istanbul-badges-readme": "^1.9.0",
     "prettier": "^3.4.2",